package com.jsyl.lwbk.system.service.impl;

import com.jsyl.lwbk.common.constant.Constants;
import com.jsyl.lwbk.common.constant.UserConstants;
import com.jsyl.lwbk.common.core.domain.Ztree;
import com.jsyl.lwbk.common.utils.StringUtils;
import com.jsyl.lwbk.system.mapper.SysMenuMapper;
import com.jsyl.lwbk.system.domain.SysMenu;
import com.jsyl.lwbk.system.domain.SysRole;
import com.jsyl.lwbk.system.domain.SysUser;
import com.jsyl.lwbk.system.mapper.SysRoleMenuMapper;
import com.jsyl.lwbk.system.mapper.SysUserMapper;
import com.jsyl.lwbk.system.service.ISysMenuService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.util.*;

/**
 * 菜单 业务层处理
 */
@Service
public class SysMenuServiceImpl implements ISysMenuService {
    public static final String PREMISSION_STRING = "perms[\"{0}\"]";

    @Autowired
    private SysUserMapper sysUserMapper;

    @Autowired
    private SysMenuMapper menuMapper;

    @Autowired
    private SysRoleMenuMapper roleMenuMapper;

    @Autowired
    private ISysMenuService menuService;

    /**
     * 根据用户查询菜单
     *
     * @param user 用户信息
     * @return 菜单列表
     */
    @Override
    public List<SysMenu> selectMenusByUser(SysUser user) {
        List<SysMenu> menus = new LinkedList<SysMenu>();
        Integer count = sysUserMapper.findRoleIdByUserId(user.getUserId());
        // 管理员显示所有菜单信息
        if (count > 0) {
            menus = menuMapper.selectMenuNormalAll();
        } else {
            menus = menuMapper.selectMenusByUserId(user.getUserId());
        }
        return getChildPerms(menus, 0);
    }

    @Override
    public List<SysMenu> selectMenusByRoleKeys(List<SysRole> sysRoles,List<Integer> activityIds) {
        List<SysMenu> menus = new LinkedList<SysMenu>();
        if(!CollectionUtils.isEmpty(sysRoles)) {
            List<String> roleKeys = new ArrayList<String>();
            for (SysRole sysRole : sysRoles) {
                roleKeys.add(sysRole.getRoleKey());
            }
            if(roleKeys.contains(Constants.ROLE_SUPERADMIN)) {
                menus = menuMapper.selectMenuNormalAll();
            } else {
                List<SysMenu> removeMenus =new LinkedList<>();
                menus = menuMapper.selectMenusByRoleKeys(roleKeys);
//                if(!roleKeys.contains(Constants.ROLE_JY) && !roleKeys.contains(Constants.ROLE_IT) && !roleKeys.contains(Constants.ROLE_HCS)
//                && !roleKeys.contains(Constants.ROLE_OPS) && !roleKeys.contains(Constants.ROLE_PM) &&!roleKeys.contains(Constants.ROLE_JW)
//                && !roleKeys.contains(Constants.ROLE_CEO)){
//                    for(SysMenu menu:menus){
//                        if(menu.getMenuId().equals(2022L)&&!activityIds.contains(3)){
//                            removeMenus.add(menu);
//                        }
//                        if(menu.getMenuId().equals(2023L)&&!activityIds.contains(4)){
//                            removeMenus.add(menu);
//                        }
//                    }
//                    menus.removeAll(removeMenus);
//                }
            }
        }
        return getChildPerms(menus, 0);
    }


    @Override
    public List<SysMenu> selectMenusByRoleKeysPerms(List<SysRole> sysRoles) {
        List<SysMenu> menus = new LinkedList<SysMenu>();
        if(!CollectionUtils.isEmpty(sysRoles)) {
            List<String> roleKeys = new ArrayList<String>();
            for (SysRole sysRole : sysRoles) {
                roleKeys.add(sysRole.getRoleKey());
            }
            if(roleKeys.contains(Constants.ROLE_SUPERADMIN)) {
                menus = menuMapper.selectMenuNormalAll();
            }
            else {
                menus = menuMapper.selectMenusByRoleKeysPerms(roleKeys);
            }
        }
        return menus;
    }

    /**
     * 查询菜单集合
     *
     * @return 所有菜单信息
     */
    @Override
    public List<SysMenu> selectMenuList(SysMenu menu, SysUser sysUser) {
        boolean isAdmin = isAdmin(sysUser);
        List<SysMenu> menuList = null;
        if (isAdmin) {
            menuList = menuMapper.selectMenuList(menu);
        } else {
            menuList = selectMenusByRoleKeysPerms(sysUser.getRoles());
        }
        return menuList;
    }

    /**
     * 查询菜单集合
     *
     * @return 所有菜单信息
     */
    @Override
    public List<SysMenu> selectMenuAll(SysUser user) {

        boolean isAdmin = isAdmin(user);

        List<SysMenu> menuList = null;
        if (isAdmin) {
            menuList = menuMapper.selectMenuAll();
        } else {
            menuList = menuService.selectMenusByRoleKeysPerms(user.getRoles());;
        }
        return menuList;
    }

    private boolean isAdmin(SysUser user){
        boolean isAdmin =false;
        if(user != null && !CollectionUtils.isEmpty(user.getRoles())){
            List<SysRole> sysRoles = user.getRoles();
            for(SysRole sysRole: sysRoles){
                if(!StringUtils.isEmpty(sysRole.getRoleKey()) && sysRole.getRoleKey().equals(Constants.ROLE_SUPERADMIN)){
                    isAdmin = true;
                    break;
                }
            }
        }
        return isAdmin;
    }
    /**
     * 根据用户ID查询权限
     *
     * @param userId 用户ID
     * @return 权限列表
     */
    @Override
    public Set<String> selectPermsByUserId(Long userId) {
        List<String> perms = menuMapper.selectPermsByUserId(userId);
        Set<String> permsSet = new HashSet<>();
        for (String perm : perms) {
            if (StringUtils.isNotEmpty(perm)) {
                permsSet.addAll(Arrays.asList(perm.trim().split(",")));
            }
        }
        return permsSet;
    }

    /**
     * 根据角色ID查询菜单
     *
     * @param role 角色对象
     * @return 菜单列表
     */
    @Override
    public List<Ztree> roleMenuTreeData(SysRole role, SysUser sysUser) {
        Long roleId = role.getRoleId();
        List<Ztree> ztrees = new ArrayList<Ztree>();
        List<SysMenu> menuList = selectMenuAll(sysUser);
        if (StringUtils.isNotNull(roleId)) {
            List<String> roleMenuList = menuMapper.selectMenuTree(roleId);
            ztrees = initZtree(menuList, roleMenuList, true);
        } else {
            ztrees = initZtree(menuList, null, true);
        }
        return ztrees;
    }

    /**
     * 查询所有菜单
     *
     * @return 菜单列表
     */
    @Override
    public List<Ztree> menuTreeData(SysUser sysUser) {
        List<SysMenu> menuList = selectMenuAll(sysUser);
        List<Ztree> ztrees = initZtree(menuList);
        return ztrees;
    }

    /**
     * 查询系统所有权限
     *
     * @return 权限列表
     */
    @Override
    public LinkedHashMap<String, String> selectPermsAll(Long userId) {
        LinkedHashMap<String, String> section = new LinkedHashMap<>();
//        List<SysMenu> permissions = selectMenuAll(userId);
//        if (StringUtils.isNotEmpty(permissions)) {
//            for (SysMenu menu : permissions) {
//                section.put(menu.getUrl(), MessageFormat.format(PREMISSION_STRING, menu.getPerms()));
//            }
//        }
        return section;
    }

    /**
     * 对象转菜单树
     *
     * @param menuList 菜单列表
     * @return 树结构列表
     */
    public List<Ztree> initZtree(List<SysMenu> menuList) {
        return initZtree(menuList, null, false);
    }

    /**
     * 对象转菜单树
     *
     * @param menuList     菜单列表
     * @param roleMenuList 角色已存在菜单列表
     * @param permsFlag    是否需要显示权限标识
     * @return 树结构列表
     */
    public List<Ztree> initZtree(List<SysMenu> menuList, List<String> roleMenuList, boolean permsFlag) {
        List<Ztree> ztrees = new ArrayList<Ztree>();
        boolean isCheck = StringUtils.isNotNull(roleMenuList);
        for (SysMenu menu : menuList) {
            Ztree ztree = new Ztree();
            ztree.setId(menu.getMenuId());
            ztree.setpId(menu.getParentId());
            ztree.setName(transMenuName(menu, permsFlag));
            ztree.setTitle(menu.getMenuName());
            if (isCheck) {
                ztree.setChecked(roleMenuList.contains(menu.getMenuId() + menu.getPerms()));
            }
            ztrees.add(ztree);
        }
        return ztrees;
    }

    public String transMenuName(SysMenu menu, boolean permsFlag) {
        StringBuffer sb = new StringBuffer();
        sb.append(menu.getMenuName());
        if (permsFlag) {
            sb.append("<font color=\"#888\">&nbsp;&nbsp;&nbsp;" + menu.getPerms() + "</font>");
        }
        return sb.toString();
    }

    /**
     * 删除菜单管理信息
     *
     * @param menuId 菜单ID
     * @return 结果
     */
    @Override
    public int deleteMenuById(Long menuId) {
        return menuMapper.deleteMenuById(menuId);
    }

    /**
     * 根据菜单ID查询信息
     *
     * @param menuId 菜单ID
     * @return 菜单信息
     */
    @Override
    public SysMenu selectMenuById(Long menuId) {
        return menuMapper.selectMenuById(menuId);
    }

    /**
     * 查询子菜单数量
     *
     * @param parentId 父级菜单ID
     * @return 结果
     */
    @Override
    public int selectCountMenuByParentId(Long parentId) {
        return menuMapper.selectCountMenuByParentId(parentId);
    }

    /**
     * 查询菜单使用数量
     *
     * @param menuId 菜单ID
     * @return 结果
     */
    @Override
    public int selectCountRoleMenuByMenuId(Long menuId) {
        return roleMenuMapper.selectCountRoleMenuByMenuId(menuId);
    }

    /**
     * 新增保存菜单信息
     *
     * @param menu 菜单信息
     * @return 结果
     */
    @Override
    public int insertMenu(SysMenu menu) {
        return menuMapper.insertMenu(menu);
    }

    /**
     * 修改保存菜单信息
     *
     * @param menu 菜单信息
     * @return 结果
     */
    @Override
    public int updateMenu(SysMenu menu) {
        return menuMapper.updateMenu(menu);
    }

    /**
     * 校验菜单名称是否唯一
     *
     * @param menu 菜单信息
     * @return 结果
     */
    @Override
    public String checkMenuNameUnique(SysMenu menu) {
        Long menuId = StringUtils.isNull(menu.getMenuId()) ? -1L : menu.getMenuId();
        SysMenu info = menuMapper.checkMenuNameUnique(menu.getMenuName(), menu.getParentId());
        if (StringUtils.isNotNull(info) && info.getMenuId().longValue() != menuId.longValue()) {
            return UserConstants.MENU_NAME_NOT_UNIQUE;
        }
        return UserConstants.MENU_NAME_UNIQUE;
    }

    /**
     * 根据父节点的ID获取所有子节点
     *
     * @param list     分类表
     * @param parentId 传入的父节点ID
     * @return String
     */
    public List<SysMenu> getChildPerms(List<SysMenu> list, int parentId) {
        List<SysMenu> returnList = new ArrayList<SysMenu>();
        for (Iterator<SysMenu> iterator = list.iterator(); iterator.hasNext(); ) {
            SysMenu t = (SysMenu) iterator.next();
            // 一、根据传入的某个父节点ID,遍历该父节点的所有子节点
            if (t.getParentId() == parentId) {
                recursionFn(list, t);
                returnList.add(t);
            }
        }
        return returnList;
    }

    /**
     * 递归列表
     *
     * @param list
     * @param t
     */
    private void recursionFn(List<SysMenu> list, SysMenu t) {
        // 得到子节点列表
        List<SysMenu> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysMenu tChild : childList) {
            if (hasChild(list, tChild)) {
                recursionFn(list, tChild);
            }
        }
    }

    /**
     * 得到子节点列表
     */
    private List<SysMenu> getChildList(List<SysMenu> list, SysMenu t) {
        List<SysMenu> tlist = new ArrayList<SysMenu>();
        Iterator<SysMenu> it = list.iterator();
        while (it.hasNext()) {
            SysMenu n = (SysMenu) it.next();
            if (n.getParentId().longValue() == t.getMenuId().longValue()) {
                tlist.add(n);
            }
        }
        return tlist;
    }

    /**
     * 判断是否有子节点
     */
    private boolean hasChild(List<SysMenu> list, SysMenu t) {
        return getChildList(list, t).size() > 0 ? true : false;
    }
}
